First, great build, and love the use of the Frost Beast mask. I think it can make for interest Ice creatures. Love the hand/claw design, might be a method I try in the future. Also, like the ice spike build, reminds me of my try on my Ice Beast with an earlier version, but still a cool build.
Now I know parts are limited for the ice theme builds, I have some parts I wish different colors. I see what your going with in the chest plate, but it is your only trans blue part. Not sure if a change would help. I noticed you legs looks like 4 parts to build. Like the thigh section, and what you did to get the helmet knees, but I agree with others that they may be too big for the build. I think a three part leg would be better, but not sure how to build up the knee then.
Anyways, from one Ice build to another, still great build. Till next build